Hose



H. W. GOODALL.

HOSE.

APPLICATION FILED JULY 10,1919. 1,357,701

Patented Nov. 2, 1920. A 3

UNITED STATES HOWARD W. GOODALL, OF ALDAN, PENNSYLVANIA.

HOSE.

Specification of Letters Patent.

Patented Nov. 2, 1920.

Application filed July 10, 1919. Serial No. 309,873.

10 all w zom it may concer/1n:

Be it known that I, HOWARD lV. GooDALL, a citizen of the United States, residing at Aldan, Delaware county, Pennsylvania, have invented certain new and useful lmprove'ments in Hose, of which the following is a specification.v

The principal object of the present invention is to materially increase the longitudinal and bending strength of the hose without materially increasing its cost, and this object is attained by a novel re-arrangement and combination of the parts, or some of them of the hose.

The invention will be claimed at the end hereof but will be lirst described in connection with the embodiment of it chosen for illustration in the accompanying' drawings, forming part hereof and in which#- Figure l, is a side view of a hose embodying .features of the invention and illustrating the novel winding.

Fig. 2, is a cross-section illustrating a hose embodying features of' the invention, and

Fig. 3, is a similar View illustrating a modification.

In the drawings the body of the hose consists of rubber material l, and duck or the like 2. The duck 2, is arranged in the form of cylindrical plies embedded in the rubber. rllhis is a usual arrangement in which the duck imparts strength but adds little or insufficiently to lengthwise or bending strength. To increase the bending and longitudinal strength, while incidentally adding to the radial strength, use is made of a spiral winding consisting of a group 3, of parallel strands 4, in which winding the spiral pitch of each strand is coarse or steep and in which all the strands are in close proximity with each other, so that the winding is substantially continuous in its application to or in covering the hose or rubber tube.

The hose chosen for illustration happens to be intended for use with oil and is of large diameter, and in that case the strands are of rope, but my invention is not limited to strands of that material. The coarse pitch of the spirals in which the turns of each individual strand lie makes each turn of each strand spaced from the next turn of the same strand by a distance equal to all the turns of the intervening strands; for ex ample,in the case of the hose shown in the drawing there are eight strands ineach group so that the adjacent turns of each strand are spaced the y, distance of eight strands. 0f course the number of strands in a group may be increased or diminished and the more strands there are in a group the coarser will be the pitch of the spiral in which each strand is wound. rThe coarse pitch of the spiral in which each strand is wound causes the winding, as a whole, satisfactorily to resist end and bending pressure or stress to which the hose is subjected. The fact that the strands in a'group are close together and parallel causes the winding to well cover the hose.

The described winding may be and usually is embedded in the rubber material 1, as shown'in Fig. 2, but it may be applied to. the exterior of the hose as shown in llfig. 3. L

ll claim: l

l. A rubber tube or hose provided with a spiral winding consisting of a group of parallel similairopes arranged side by side in the same plane and in close proximity and individually disposed in similar turns of coarse pitch, substantially as described.

2. A rubber tube or hose provided with an embedded spiral winding consisting of a group of parallel ropes side by side and in close proximity with each other and individually disposed in similar spiral turns of coarse pitch and vulcanized to the hose, substantially as described.

' HOWARD W. GOODALL. 

